3.Anuj gets pocket money from his father everyday. Out of the pocket money, he saves Rs 2.75 on first day, Rs 3 on second day, Rs 3.25 on third day and so on. On the basis of above information, answer the following questions. (i) What is the amount saved by Anuj on 14th day? (a) Rs 6.25 (b) Rs 6 (c) Rs 6.50 (d) Rs 6.75 (ii) What is the total amount saved by Anuj in 8 days? (a) Rs 18 (b) Rs 33 (c) Rs 24 (d) Rs 29 (iii) What is the amount saved by Anuj on 30th day? (a) Rs 10 (b) Rs 12.75 (c) Rs 10.25 (d) Rs 9.75 (iv) What is the total amount saved by him in the month of June, if he starts savings from 1st June? (a) Rs 191 (b) Rs 191.25 (c) Rs 192 (d) Rs 192.5 (v) On which day, he save tens times as much as he saved on day-I? (a) 9th (b) 99th (c) 10th (d) 100th
Copper is a tough,soft,ductile,reedlish,metal,with atomic number of 29,a relative atomic mass of 63.54 amu an electronic configuration 1s²_25²_2p⁶_35²_3p⁶_3d¹⁰ and relative density of 895.
The melting and boiling points are 1083 and 2595⁰C respectively.
In a certain examination, 200 students appeared in a subject of mathematics. Average marks obtained were 50% with standard deviation 5%. How many students do you expect to obtain more than 60% of marks, supposing that marks are distributed normally? [ Given For z=2: A = 0.4